The present study focuses on the relation of Islamic lifestyle with ethical identity and self-control among the adolescents through descriptive and causal method. The statistical population of this research included all students of grades 2 and 3 intermediate school of the City of Tehran during the academic year 2014-15. The sample consisted of 380 students selected through stratified random cluster sampling method. The data was collected through Islamic Lifestyle, Ethical Identity and Self-Control Questionnaires. The data was analyzed through employing descriptive statistical techniques, correlation coefficient and regression. The results show that there is a positive significant relationship between Islamic lifestyle and ethical identity and self-control among the adolescents. Also the multiple regression analysis showed that Islamic lifestyle and some of its indexes can explain the variance of ethical identity and self-control among the adolescents.